Ann Koval, M.D.
NPI 1427035633 · Internal Medicine Physician · Westerville, OH
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ann Koval, M.D. is a Internal Medicine Physician provider in Westerville, OH (NPI 1427035633).
Provider details
- NPI number
- 1427035633
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 35-05-9244 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,646 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 298 | $9 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 167 | $8 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 162 | $10 |
| Hemoglobin A1c Level83036 | 145 | $10 |
| Blood Test, Thyroid Stimulating Hormone (tsh)84443 | 131 | $16 |
| Thyroxine (thyroid Chemical), Free84439 | 130 | $9 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 67 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 275 | 71 |
| Rosuvastatin Calcium | 270 | 69 |
| Atorvastatin Calcium | 231 | 62 |
| Simvastatin | 170 | 32 |
| Omeprazole | 144 | 39 |
| Losartan Potassium | 128 | 35 |
| Lisinopril | 108 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$18 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-12-29
- Last updated
- 2018-08-10
Frequently asked questions
- What is Ann Koval's NPI number?
- Ann Koval's National Provider Identifier (NPI) is 1427035633, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ann Koval's specialty?
- Ann Koval is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ann Koval located?
- Ann Koval's practice location on file with NPPES is 625 Africa Rd Ste 340, Westerville, OH 43082.
- What is Ann Koval's phone number?
- The practice phone number listed in the NPPES registry for Ann Koval is (614) 901-2273.
- Does Ann Koval accept Medicare?
- Ann Koval is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ann Koval's NPI active?
- Yes — Ann Koval's NPI (1427035633) is active in the NPPES registry as of the last update on 2018-08-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.